[Bug tree-optimization/91758] Clang fails to pass validation after r261089

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91758

Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
   Last reconfirmed|                            |2019-09-12
                 CC|                            |ebotcazou at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> The failures first started after:
> https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=261089
>      gimple-ssa-store-merging.c: Include gimple-fold.h.
> 
> While subsequent gcc tweaks resulted in different tests failing, this commit
> appears to be the genesis of all of the failures.
> 
> Steps to Reproduce:
> 1. git clone https://github.com/llvm/llvm-project.git
> 2. cd llvm-project
> 3. mkdir build && cd build
> 4. CC=gcc CXX=g++ cmake -DLLVM_ENABLE_PROJECTS=clang
> -DCMAKE_BUILD_TYPE=Release -G "Unix Makefiles" ../llvm 
> 5. make check-all -j4

Thanks for reporting the problem, but we need more information and a
reproducer, see the instructions at https://gcc.gnu.org/bugs/